First version
Pass minimize argument to borschik depending on YENV value
exclude min.js from from getTechs()
code clean up
Add missing return
Optimize map call in min.js
Link to *.min.* files instead of _*.* in the bemjson files

Add techs in the make.js to build min.css, min.ie.css and min.18n.js,
fix tests
Introduce preferFork() method.
Remove BorschikNode class and borschik worker script
Add comments/jsdoc; min.i18n.js in the tests uses BEM_I18N_LANGS env for suffixes array
Fix min.js.js after commits reordering
Tests: add ie.css to min.ie.css dependencies.
Merge pull request #467 from bem/BEM-1129

Move minimising functionality from bem make to the techs